Folding cup



FIG. 1 is a front elevational view of a folding cup showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top perspective view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a bottom plan view thereof; and

FIG. 8 is a front perspective view thereof in a folded condition. 

The ornamental design for a folding cup, as shown and described. 